tooot/src/components/Timeline/Notifications.tsx

import analytics from '@components/analytics'
import TimelineActioned from '@components/Timeline/Shared/Actioned'
import TimelineActions from '@components/Timeline/Shared/Actions'
import TimelineAttachment from '@components/Timeline/Shared/Attachment'
import TimelineAvatar from '@components/Timeline/Shared/Avatar'
import TimelineCard from '@components/Timeline/Shared/Card'
import TimelineContent from '@components/Timeline/Shared/Content'
import TimelineHeaderNotification from '@components/Timeline/Shared/HeaderNotification'
import TimelinePoll from '@components/Timeline/Shared/Poll'
import { useNavigation } from '@react-navigation/native'
import { StackNavigationProp } from '@react-navigation/stack'
import { TabLocalStackParamList } from '@utils/navigation/navigators'
import { QueryKeyTimeline } from '@utils/queryHooks/timeline'
import { getInstanceAccount } from '@utils/slices/instancesSlice'
import { StyleConstants } from '@utils/styles/constants'
import { useTheme } from '@utils/styles/ThemeManager'
import { isEqual, uniqBy } from 'lodash'
import React, { useCallback } from 'react'
import { Pressable, View } from 'react-native'
import { useSelector } from 'react-redux'
import TimelineFiltered, { shouldFilter } from './Shared/Filtered'
import TimelineFullConversation from './Shared/FullConversation'

export interface Props {
  notification: Mastodon.Notification
  queryKey: QueryKeyTimeline
  highlighted?: boolean
}

const TimelineNotifications = React.memo(
  ({ notification, queryKey, highlighted = false }: Props) => {
    if (
      notification.status &&
      shouldFilter({ status: notification.status, queryKey })
    ) {
      return <TimelineFiltered />
    }

    const { colors } = useTheme()
    const instanceAccount = useSelector(
      getInstanceAccount,
      (prev, next) => prev?.id === next?.id
    )
    const navigation =
      useNavigation<StackNavigationProp<TabLocalStackParamList>>()

    const actualAccount = notification.status
      ? notification.status.account
      : notification.account

    const onPress = useCallback(() => {
      analytics('timeline_notification_press')
      notification.status &&
        navigation.push('Tab-Shared-Toot', {
          toot: notification.status,
          rootQueryKey: queryKey
        })
    }, [])

    return (
      <Pressable
        style={{
          padding: StyleConstants.Spacing.Global.PagePadding,
          backgroundColor: colors.backgroundDefault,
          paddingBottom: notification.status
            ? 0
            : StyleConstants.Spacing.Global.PagePadding
        }}
        onPress={onPress}
      >
        {notification.type !== 'mention' ? (
          <TimelineActioned
            action={notification.type}
            account={notification.account}
            notification
          />
        ) : null}

        <View
          style={{
            opacity:
              notification.type === 'follow' ||
              notification.type === 'follow_request' ||
              notification.type === 'mention' ||
              notification.type === 'status'
                ? 1
                : 0.5
          }}
        >
          <View style={{ flex: 1, width: '100%', flexDirection: 'row' }}>
            <TimelineAvatar
              queryKey={queryKey}
              account={actualAccount}
              highlighted={highlighted}
            />
            <TimelineHeaderNotification
              queryKey={queryKey}
              notification={notification}
            />
          </View>

          {notification.status ? (
            <View
              style={{
                paddingTop: highlighted ? StyleConstants.Spacing.S : 0,
                paddingLeft: highlighted
                  ? 0
                  : StyleConstants.Avatar.M + StyleConstants.Spacing.S
              }}
            >
              {notification.status.content.length > 0 ? (
                <TimelineContent
                  status={notification.status}
                  highlighted={highlighted}
                />
              ) : null}
              {notification.status.poll ? (
                <TimelinePoll
                  queryKey={queryKey}
                  statusId={notification.status.id}
                  poll={notification.status.poll}
                  reblog={false}
                  sameAccount={notification.account.id === instanceAccount?.id}
                />
              ) : null}
              {notification.status.media_attachments.length > 0 ? (
                <TimelineAttachment status={notification.status} />
              ) : null}
              {notification.status.card ? (
                <TimelineCard card={notification.status.card} />
              ) : null}
              <TimelineFullConversation
                queryKey={queryKey}
                status={notification.status}
              />
            </View>
          ) : null}
        </View>

        {notification.status ? (
          <TimelineActions
            queryKey={queryKey}
            status={notification.status}
            highlighted={highlighted}
            accts={uniqBy(
              (
                [notification.status.account] as Mastodon.Account[] &
                  Mastodon.Mention[]
              )
                .concat(notification.status.mentions)
                .filter(d => d?.id !== instanceAccount?.id),
              d => d?.id
            ).map(d => d?.acct)}
            reblog={false}
          />
        ) : null}
      </Pressable>
    )
  },
  (prev, next) => isEqual(prev.notification, next.notification)
)

export default TimelineNotifications